Ann Arbor’s dioxane plume is rather unusual, in that it emanates from just one source. That source is the old Gelman Sciences facility on Wagner Road in Scio Township. Other area's of dioxane contamination around the country, such as the KL Avenue Landfill in Kalamazoo, have many “Responsible Parties” contributing to the contamination problem. Even with a single source, assigning responsibility for clean-up remains complicated in Ann Arbor. In this installment of "The Green Room" we try to untangle the confusing web of who is who when it comes to liability.

A new natural gas pipeline is in the works and would expend the web of pipelines running through Washtenaw County. In this week's "Issues of the Environment," WEMU's David Fair talks with Nancy Shiffler, chair of the Sierra Club's Michigan chapter, about the potential impacts of a new pipeline.

The city of Ann Arbor has released its annual drinking water quality report. Brian Steglitz is the manager of water treatment services for the city. He says they continue to meet or exceed all state and federal regulatory requirements. There is no issue with lead in Ann Arbor's drinking water like there is in Flint.

The City of Ann Arbor and Washtenaw County have invested in a unique study along Swift Creek. With the aid of grants from the DEQ and United States' E.P.A. "green infrastructure" will be installed and studied in a target residential neighborhood.

The Huron River Watershed Council's "RiverUp!" stewardship program is the subject of three new mini-documentaries. The films focus on efforts to preserve the future of the Huron River and the people doing that work.

Huron River Watershed Council Deputy Director and "RiverUp!" Director Elizabeth Riggs says the first of the short films highlights fly fishing on the Huron River by telling the story of Depot Town businessman Mike Schultz and his love of fly fishing.

After years of industrial contamination and economic stagnation, things may be turning around in Ann Arbor’s Lower Town, thanks to a new recreational feature in the Huron River, and the soon-to-be-announced DTE proposal to develop the Mich-Con property across the river. Community responses are mixed, ranging from cautious optimism to elation.

The Huron River Watershed Council is embarking on a series of "resident conversations" to hear concerns and answer questions from those who live along the water's edge. WEMU's Bob Eccles interviewed HRWC Executive Director Laura Rubin about the effort.

Hidden dangers posed by underground oil pipelines could threaten the Huron River. Laura Rubin is Executive Director of the Huron River Watershed Council, and she's our guest on this week's Issues of Environment from WEMU.